How Chad Michael Murray Is Preparing for Baby No. 2

Chad Michael Murray may keep the majority of his personal life hidden behind closed doors, but the proud dad-to-be couldn't help but beam with excitement when discussing his wife's pregnancy at the GQ Men of the Year party Thursday night.

"It's incredible. I'm shaking in my boots," the One Tree Hill star told E! News. "I did one—awesome. Now I've got it down to the science."

As the couple announced in November, Murray is expecting his second child with actress Sarah Roemer. They are already parents to a 1-year-old son, born in May 2015. Now the duo are preparing to welcome a daughter, and despite his previous parenting experiences, Murray is anxious about what's to come.

"Me and my boy, we're good! We've got wrestle play time. He loves beating on dad at night. We know his shows, we know what he likes, what he doesn't like," he said. "And now it's a girl, and I have no idea what to expect."